Software Engineer

About Y/n

Play your story

Tech description:

Our mission to solve one of the hardest challenges in computing: to train an AI to write the most creative stories in the world. It brings its own fun sub-challenges: we run our own datacenter, collect data in-house, and serve trillions of inference tokens each month.

Job description:

Hi, my name is Gabriel and I'm the co-founder of [Y/n](https://apps.apple.com/us/app/y-n/id6744907251).

Y/n is an app where you play the main character in a story written for you. Be the new kid at a boarding school and get everyone to fall for you, or plan a jailbreak with Sherlock Holmes. Every text you send changes the plot and how characters feel about you, so no two playthroughs are the same.

Our mission at Y/n is to create the most entertaining storyteller in the world, and give it to everyone.

### Why you should join us

* People love Y/n:
* Users spend on average 3+ hours playing Y/n everyday
* We are top #10 books apps in the world (reached #4 app in the App Store last month), even though we just launched
* We raised $14M from top VCs
* We work on interesting technical problems:
* We serve \~3T tokens (\~300M user messages, growing 40% MoM) per month with a team of 4
* We manage a LOT of compute!
* Training an AI to be fun and creative is incredibly interesting
* The founders + team are fun to work with:
* My co-founder Eric trained the first-ever image editing AI in the world
* Before Y/n, I was the founding designer and one of the first employees at Substack, where I learned a lot about product and media
* Together, we previously co-founded Can of Soup, a hit AI image sharing app, which you can read about in the [New York Times](https://www.nytimes.com/2023/09/27/technology/ai-images-social-media-sharing.html)

### Some examples of what you would do

You'd be one of our first engineers, with real ownership across the product and the infrastructure. In practice that could mean:

* Building our personalized recommendation system infrastructure
* Building features in our mobile and web application

The role will adapt and grow as we do, so don’t worry if you haven’t worked on recommender systems or ML yet!

### What we’re looking for

* You’ve built actual infrastructure (not just pushed to Vercel)
* You’ve worked at a startup or built meaningful side projects
* Optional: you’re into fandom, reading, games, or fanfiction!
* You're willing to relocate to San Francisco. If you do not have US work authorization, we can help with that